JPH0238066Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a kick starter for a straddle-type vehicle.

b. Conventional technology The first straddle-type four-wheel vehicle 1 was developed as a small vehicle for traveling on rough terrain and equipped with low-pressure balloon tires.
Shown in Figures a and b. In small automobiles, a kick starter having a structure as shown in FIG. 2, for example, is usually used. In this hard starter, the hard pedal 2 is depressed to turn the hard shaft 3, and the rotational force of the hard shaft 3 is applied to the crank through the path of the one-way clutch 4, intermediate gear 5, main shaft 6, friction clutch 7, primary driven gear 8, and primary drive gear 9. The signal is transmitted to the shaft 10. However, if the saddle type vehicle 1 is provided with a kick starter as shown in FIG. 2, the jack shaft 3 will be provided at the position shown in FIG. 1a.
This has a disadvantage in that even if an attempt is made to push the kick pedal 2 rearward, it will interfere with the fender 4 of the rear wheel.

For this reason, there is a technique in which the crankshaft 3 is placed in front of the crankshaft 10 (in 1983).
-17018), it had the disadvantage that increasing the gear ratio inevitably required an increase in space, and was not suitable for practical use.

c Problems to be Solved by the Invention The present invention was made to solve these drawbacks, and includes providing a torque shaft in front of the crankshaft and transmitting the rotation of the torque shaft to the primary drive gear attached to the crankshaft. The present invention provides a kick starter for a straddle-type vehicle equipped with a gear device.

d. Embodiments The present invention will be described below with reference to embodiments shown in the accompanying drawings.

As shown in FIG. 3, the jackshaft 11 of the jack starter according to the present invention is provided in front of the crankshaft.

FIG. 4 shows in detail an embodiment of the kick starter according to the present invention. In the figure, 12 is a kick pedal, 13 is a starter, 14, 15, 16 are rotation transmission gears, and 17 is a primary drive gear. The starter 13 is connected to the gear 14 by the spring 18.
It is biased towards the side and is provided with a ratchet 19. Corresponding to the ratchet 19, the gear 14 has a ratchet 2.
0 is set. The rotation transmission gear 14,1
6 is loosely fitted into a crankshaft 11, and the rotation transmission gear 15 is loosely fitted into a crankshaft 21 disposed transversely to the vehicle traveling direction. Note that 22 is a clutch housing, and 23 is a primary driven gear.

It should be noted that the gears 15 and 16 are stepped gears, and the gears are changed in two stages: gears 14 to 15 and gears 15 to 16. Therefore, a sufficient rotation ratio can be obtained without increasing the radius of the gear 14.

In the embodiment with the above configuration, to start the engine, first, the kick pedal 12 is depressed rearward. As a result, the shaft 11 rotates, and the starter 13 engages the cam surface 25 of the case 24.
, and the latches 19 and 20 engage with each other.

This causes the gear 14 to rotate, and from the gear 14,
The rotation is transmitted to the primary drive gear 17 via the stepped gears 15 and 16, and the crankshaft 21 rotates. Note that the present invention can be applied to both straddle-type tricycles and four-wheeled vehicles. Further, the rotation ratio between the engine shaft and the crankshaft can be appropriately selected according to the engine.

e Effects As described above, in the kick starter of the straddle-type vehicle according to the present invention, the kick pedal does not interfere with the fender of the rear wheel.

In addition, by a gear device using stepped gears 15 and 16, gears 14 to 15 and gears 15 to 1
Since it is possible to change gears over two stages of 6,
Even without increasing the radius of the gear 14, a sufficient rotation ratio can be obtained despite the compact design.

[Brief explanation of the drawing]

Figures 1a and b are a side view and a plan view of a straddle-type vehicle equipped with a conventional kickstarter, Figure 2 is a sectional view of a conventional kickstarter, and Figure 3 is a side view and a plan view of a straddle-type vehicle equipped with a conventional kickstarter. FIG. 4, which is a side view of the saddle type vehicle, is a sectional view of the kick starter according to the present invention. 2,12...Kick pedal, 3,11...Kick shaft, 13...Starter, 14,15,1
6... Rotation transmission gear, 9, 17... Primary drive gear, 8, 23... Primary driven gear, 18... Spring, 19, 20... Ratchet, 25... Cam surface.

Claims (1)

[Scope of utility model registration request] A crankshaft 11 is provided in front of a crankshaft 21 disposed transversely to the vehicle traveling direction; a gear 14 that is loosely fitted onto the shaft 11 and rotated by stepping down on the crankshaft 11 rearward; a stepped gear 15 that meshes with the crankshaft 21 and loosely fits into the crankshaft 21;
A gear device including a stepped gear 16 meshing with the gear 15 and loosely fitting into the shaft 11;
The rotation of the shaft 11 is transmitted to the primary drive gear 17 mounted on the shaft 21 by the gear device;
A kick starter for a straddle-type vehicle, characterized in that the engine is operated by stepping down on the jack shaft 11 rearward.